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Password Generator & Entropy Tester
Military-grade random password and passphrase generator using browser Web Crypto API. Features real-time entropy calculation (bits), cracking time estimates, custom character sets, and k-anonymity HaveIBeenPwned database verification.
✓ Web Crypto API cryptographically secure random numbers✓ Custom length (8–128), symbols, numbers & ambiguity exclusions✓ Real-time Shannon entropy & time-to-crack estimation✓ HaveIBeenPwned k-anonymity leak & data breach check✓ Memorable passphrase mode & 1-click batch generation
Free In-Browser Utility · 100% Client-Side & Zero Data Telemetry
Unlock All 39+ Cyber Tools & Terminal OS (₹500)Web Crypto CSPRNG
Generating...
Entropy: 0 bits(0 character pool)Weak
Breach Verification: Check if this password has appeared in 1B+ data leaks.
Generation Parameters
Password Length20 chars
8 (Basic)16 (Strong)32 (Ultra)64 (Paranoid)
1-Click Presets:
Time-To-Crack Analysis
Online Brute Force (1k req/s):
Instant
8x RTX 4090 Hash Rig (100B/s):
Instant
Quantum / Supercomputer (10¹⁴/s):
Instant
Batch Generation
Generate multiple passwords at once for team provisioning or credential rotations.
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